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Aleonysh [2.5K]
3 years ago
8

6) A car of mass 1000kg moving with a velocity of 40m/s collides with a tree and comes to stop in 5s. What will be the force exe

rted by the car on the tree?
Physics
1 answer:
Tamiku [17]3 years ago
3 0

Answer:

Refer to the attachment!~

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Each ball has a negligible size and a mass of 11.5 kg and is attached to the end of a rod whose mass may be neglected. The rod i
Digiron [165]

Answer:

3.31m/s

Explanation:

Angular momentum for 3s is

L = L_i_n_i + L_3_s

L = 2(11.5kg) + \int\limits^ {3s}_ {0s} {(t^2 + 2)} \, dt

L = 23kg+(\frac{t^3}{3} +2t)^ {3s}_ {0s}\\\\L=38kgm/s

Moment if inertia is

I = 2ml^2

I = 2(11.5)(0.5)^2\\\\I=5.75kgm^2

Angular speed

ω = L/I

= 38 / 5.75\\\\=6.61

The speed of each ball is

V = ωL

= 6.61\times0.5\\\\= 3.31m/s

7 0
3 years ago
Choose all the answers that apply.
Serhud [2]
<span>According to Newton's first law of motion:

-- objects at rest will remain at rest unless acted upon by an outside force

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8 0
3 years ago
Before designing the filter, one must understand the relationship between the output voltage of the circuit and the frequency. F
Kamila [148]

Answer:

Option b. is correct

Explanation:

An RLC electrical circuit consists of constituent components: a resistor (R), an inductor (L), and a capacitor (C). A resistor, an inductor, and a capacitor are connected in series or parallel.

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5 0
3 years ago
Sphere is fired downwards into a medium with an initial speed of 27 m/s. If it experiences a
anygoal [31]

Answer:

33 m/s

first i do 27+6=33 +s2=

8 0
3 years ago
What term refers to the part of a spacecraft that is occupied by the crew for takeoff and landing?
Semenov [28]
Command module ✅

service module

lunar module

annum module
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